Refrigerator



FIG. 1 is a front/right-side/top perspective view of a refrigerator showing our new design;

FIG. 2 is a front-side elevational view thereof;

FIG. 3 is a rear-side elevational view thereof;

FIG. 4 is a left-side elevational view thereof;

FIG. 5 is a right-side elevational view thereof;

FIG. 6 is a top-side elevational view thereof;

FIG. 7 is a bottom-side elevational view thereof; and,

FIG. 8 is an enlarged front/right-side/top perspective view thereof.

The broken-line showing is included for the purposes of illustrating and forms no part of the claimed design. 

CLAIM The ornamental design for a refrigerator, as shown and described. 